This was then backed up by what he then said at the Tokyo Games Show, stressing that the title was something “never seen before”, urging people to “stay tuned!”.

With Microsoft's next-gen console set to hit the Japanese market this September, the company has some time to tease and then announce the game but for the moment fans can only speculate.

During GDC, Spencer also promised that Microsoft would renew its efforts to improve PC gaming - a platform it has been criticised for, at best, ignoring and, at worst, undermining with poor or delayed Xbox ports and the lamented Games For Windows system.

"A renewed focus on Windows and PC gaming inside Microsoft is definitely happening," he commented, according to Polygon.

"You will see more focus from us - not to go compete with what Valve has done, but because we also understand as the platform holder it's important for us to invest in the platform in a real way. We're fundamentally committed to that."

James Lee

James Lee is a freelance writer and analyst with extensive experience in the technology, media and games sectors. For the past few years he has provided content for internationally published industry reports, SEO companies and a variety of news-focused websites. Prior to this, James was responsible for covering news and producing in-depth features for GamesIndustry.biz while occasionally contributing to its sister-site. Eurogamer.net. In addition to this he has contributed to other notable sites such as CVG.co.uk, Edge-Online and DigitalSpy.